A man bought three articles for ₹6,000 each. Hesold the articles respectively at 15% profit, 12% profit and 15% loss. The total percentage profit/loss he earned is:

According to questions

CP of $$1^{st}$$ article = ₹6000

SP of $$1^{st}$$ article = 6000 $$\times \frac{115}{100}$$ =  ₹6900

CP of $$2^{nd}$$ article = ₹6000

SP of $$2^{nd}$$ article = 6000 $$\times \frac{112}{100}$$ = ₹6720

CP of $$3^{rd}$$ article = ₹6000

SP of $$3^{rd}$$ article = 6000 $$\times \frac{85}{100}$$ = ₹5100

Total CP = 6000+6000+6000 = ₹18,000

Total SP = 6900 + 6720 + 5100 = ₹18,720

So Net profit = SP - CP = 18,720 - 18,000=₹720

Profit % = $$\frac{720}{18000} \times 100$$

$$\Rightarrow 4\% $$